iDP3420/3421/3423 User’s Manual
127 CITIZEN
APPENDIX 1. BLOCK DIAGRAM
Power Supply
120 V AC, 50/60 Hz
230 V AC, 50/60 Hz
Interface
OSC16MHz
POWER LED
ERROR LED
FEED Switch
Drawer
Parallel
(CENTRONICS Based)
Serial
(RS-232C Based)
DIP Switch
Driver
Reset
Driver
Driver
Filter
Power
Supply
V
Vcc
Print
Head
Pa
er
End
DC
Moter
Printer
Mechanism
V
: For mechanism drive
Fordrawerkick
Vcc:For circuit drive
ROM
RAM
CPU
Auto Cutter
(iDP3421/3423 only)
Winder
(iDP3423 only)
